Compilare: main.c: In function 'getFact': main.c:11:11: warning: array subscript has type 'char' [-Wchar-subscripts] 11 | if(s[si ++] == '-') | ~~~^~ main.c:14:7: warning: array subscript has type 'char' [-Wchar-subscripts] 14 | if(s[si] == '0') | ^ main.c:16:21: warning: array subscript has type 'char' [-Wchar-subscripts] 16 | while(si < sn && s[si] >= '0' && s[si] <= '9'){ | ^ main.c:16:37: warning: array subscript has type 'char' [-Wchar-subscripts] 16 | while(si < sn && s[si] >= '0' && s[si] <= '9'){ | ^ main.c:18:11: warning: array subscript has type 'char' [-Wchar-subscripts] 18 | x += s[si] - '0'; | ^ main.c: In function 'main': main.c:85:11: warning: array subscript has type 'char' [-Wchar-subscripts] 85 | if(s[si] == '+' || s[si] == '-'){ | ^ main.c:85:27: warning: array subscript has type 'char' [-Wchar-subscripts] 85 | if(s[si] == '+' || s[si] == '-'){ | ^ main.c:101:11: warning: array subscript has type 'char' [-Wchar-subscripts] 101 | if(s[si] == '-' || s[si] == '+' || si == sn) | ^ main.c:101:27: warning: array subscript has type 'char' [-Wchar-subscripts] 101 | if(s[si] == '-' || s[si] == '+' || si == sn) | ^ main.c:104:13: warning: array subscript has type 'char' [-Wchar-subscripts] 104 | if(s[si] == 'x') | ^ main.c:106:18: warning: array subscript has type 'char' [-Wchar-subscripts] 106 | else if(s[si] == 'y') | ^ main.c:108:18: warning: array subscript has type 'char' [-Wchar-subscripts] 108 | else if(s[si] == 'z') | ^ main.c:110:18: warning: array subscript has type 'char' [-Wchar-subscripts] 110 | else if(s[si] == 't') | ^ main.c:120:16: warning: unused variable 'j' [-Wunused-variable] 120 | int ne, r, j, min, max; | ^ main.c:58:7: warning: unused variable 'nrs' [-Wunused-variable] 58 | int nrs, zv, tv, xv, yv; | ^~~ main.c:57:7: warning: unused variable 'n' [-Wunused-variable] 57 | int n, i, t, a, b, e, sum, x; | ^